Ok here is a new guy question.
My brother and i each bought a phantom3 advanced.can we fly them together in close proximity,or do we run the chance of interface from each other.

I have only flown in a group once before (and did not have an issue), but apparently you can. I have seen some report some interference if the RCs are too close but they stated it was OK when they moved just a little bit away (like maybe 10 feet or so).  So I think you would be OK maybe 15 feet from each other.

Hi torgytoo,there might be interference betweent two aircraft.
I'd suggest you to change the channel mode to custom and select different channel.
Here is the screenshot for your reference.

Thanks a lot for the info. It was a big help.